were to begin to reduce carbon emissions, have the united states for example lead the way in this new technology, especially energy transmission, energy storage, electricity, we could change the world. we could get everybody a much higher quality of life than they would otherwise have. the problem is so many people live near the coasts and they are very old economic reasons. people lived on rivers since the beginning of human history so as sea levels, as the world gets warmer and i take it he doesn't disagree the world's getting warmer. so ice is also falling off the ice sheets so that ice is up on land. this is also going to cause the sea level to rise. so for example, in the case of sandy, which was not an especially big hurricane, the economic impact was $30 billion and that's in the developed world where we have the resources to deal with it. when you have people displaced on a continental scale, we're not talking about a few people trying to get through a fence at a border between countries. we're talking about tens of millions of people trying to move north, trying to move out of southeast